20331121021112 has 32 divisors (see below), whose sum is σ = 41587810009200. Its totient is φ = 9241101734400.

The previous prime is 20331121021009. The next prime is 20331121021139. The reversal of 20331121021112 is 21112012113302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1371089 + ... + 6522432.

Almost surely, 2^{20331121021112} is an apocalyptic number.

20331121021112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20331121021112 is an abundant number, since it is smaller than the sum of its proper divisors (21256688988088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20331121021112 is a wasteful number, since it uses less digits than its factorization.

20331121021112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7922807 (or 7922803 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 20331121021112 its reverse (21112012113302), we get a palindrome (41443133134414).

The spelling of 20331121021112 in words is "twenty trillion, three hundred thirty-one billion, one hundred twenty-one million, twenty-one thousand, one hundred twelve".